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Pipe wrench with hooked tang spacer

A technology of tang and wrench, which is applied in the field of wrenches and can solve problems such as failure of hooked jaws

Active Publication Date: 2016-06-15
EMERSON ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

May cause hooked jaws to fail

Method used

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  • Pipe wrench with hooked tang spacer
  • Pipe wrench with hooked tang spacer
  • Pipe wrench with hooked tang spacer

Examples

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Embodiment Construction

[0017] The present invention provides a Stilson or pipe wrench having a spacer, bumper or other member positioned between the tang portion of the hooked jaws and a workpiece disposed between the jaws of the wrench. Depending on the particular application, the spacer or member may be formed from a deformable material or a rigid material, as described in more detail herein. Depending on the type and / or application of the wrench, the spacer may be provided on the hooked jaws, handle or other components. Through the addition and use of the spacer, the pivoting action of the hook is uninterrupted during initial engagement with the workpiece, even with the wrench abutting against the spacer. Thereby, the problems associated with the aforementioned incorrect operation, namely lack of clamping force and increased mechanical stress, are avoided.

[0018] After the pipe wrench having said spacer is provided, or after the spacer is installed on the pipe wrench, the spacer abuts against ...

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PUM

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Abstract

A shank spacer member and its attachment to a pipe wrench is described. The shank spacer member prevents contact between a pipe or other work piece and a shank portion of a movable jaw when the pipe is positioned in the wrench. Upon application of torque to the wrench, the member and its placement on the wrench provides increased gripping force by the wrench upon the pipe.

Description

[0001] Related Patent Applications [0002] This patent application claims priority to US Invention Application Serial No. 13 / 626,132 filed September 25, 2012. The entire disclosure of this application is incorporated herein by reference. technical field [0003] The present invention relates to wrenches for use in tightening threaded members on various mechanical components, pipes and conduits, for example when engaging components and / or providing sealed connections. Background technique [0004] A Stilson-style wrench (commonly called a "pipe wrench") or other such wrench employs a heel-type jaw fixed to the handle and a movable hook-like jaw that also pivots to a limited extent about a point on the handle . Typically, the hook jaws can be selectively positioned relative to the heel jaws by rotating the threaded member on a wrench. When a rotational force is applied to the handle, the pivoting action of the hook jaw brings the hook and heel jaws closer together. Thus, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/58
CPCB25B13/5041
Inventor 查理德·M.·昆德拉斯克詹森·伯格斯哥伦·R.·沙尔捷保罗·W.·格雷斯
Owner EMERSON ELECTRIC CO